DM File

What are DM files and how to open them

Are you having problems opening a DM file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a DM file?

DM files have multiple uses, and Delta Music Module is one of them. Read more about the other uses further down the page.

Delta Music Module

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open DM files

Important: Different programs may use files with the DM file extension for different purposes, so unless you are sure which format your DM file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested ten different DM openers which you will find listed below.

Last updated: December 19, 2022

All known file formats using extension .DM

While Delta Music Module is a popular type of DM-file, we know of 2 different uses of the .DM file extension. Different software may use files with the same extension for different types of data.

Sony DRM Encoded File

Files that contain the .dm file extension usually are associated with media files that have been encoded with Digital Rights Management copy-protection software.

These files ensure that an associated media file is not used without the distributor's express consent and that user's cannot copy or distribute the associated media illegally. DM files usually contain audio files used for cellphone ring tones and other cell media clips.

The digital rights management DM files are created with the Sony Ericson DRM Packager. Media developers use this utility to deliver their media content to Sony Ericson mobile devices.

Various apps that use files with this extension

These apps are known to open certain types of DM files. Remember, different programs may use DM files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about DM file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.